#include <TinyGPS++.h>

#include <SoftwareSerial.h>
double latitude, longitude;
TinyGPSPlus gps;
SoftwareSerial SIM800L(7,6);
SoftwareSerial gps_Serial(2,3);

void setup() {
  Serial.begin(9600);
  Serial.println("GPS Mulai");
  gps_Serial.begin(9600);

    SIM800L.begin(9600);
    SIM800L.println("AT+CMGF=1");
    updateSerial();
    Serial.println("SIM800L started at 9600");
    delay(1000);
    Serial.println("Setup Complete! SIM800L is Ready!");
    SIM800L.println("AT+CNMI=1,2,0,0,0");
    updateSerial();

}

void GPS(){

  if(gps.location.isValid()) {
    Serial.print("https://www.google.com/maps/@");
    Serial.print("Latitude: ");
    Serial.println(gps.location.lat(), 6);
    Serial.print("Longitude: ");
    Serial.println(gps.location.lng(), 6);

  }
  Serial.println();
  Serial.println();
  delay(1000);
}

void loop() {

      if(Serial.find("ON")) {

        if(gps_Serial.available()>0) {
    gps.encode(gps_Serial.read());
    GPS();
  }
           Serial.println("AT"); //Once the handshake test is successful, it will back to OK
          updateSerial();

           Serial.println("AT+CMGF=1");    //Sets the GSM Module in Text Mode
          updateSerial();
          delay(1000);  // Delay of 1000 milli seconds or 1 second
           Serial.println("AT+CMGS=\"xxxxxxxxxxxx\""); // Replace x with mobile number
          updateSerial();
          delay(1000);


          Serial.println("www.google.com/maps/place/" + String(gps.location.lat(), 6) + "," + String(gps.location.lng(), 6));// The SMS text you want to send
          updateSerial();
          delay(100);
          SIM800L.println((char)28);// ASCII code of CTRL+Z
          delay(1000);
          SIM800L.write(28);
      }
  }






void updateSerial()
{
  delay(500);
  while (Serial.available())
  {
     Serial.write(Serial.read());//Forward what Serial received to Software Serial Port
  }
  while(Serial.available())
  {
    Serial.write( Serial.read());//Forward what Software Serial received to Serial Port
  }
}